Let's roll up our sleeves and solve this. We have 4 and we're going to multiply it by 426, essentially adding 4 to itself 426 times.
Step 1: 0 + 4 = 4
Step 2: 4 + 4 = 8
Step 3: 8 + 4 = 12
Step 4: 12 + 4 = 16
Step 5: 16 + 4 = 20
Step 6: 20 + 4 = 24
Step 7: 24 + 4 = 28
Step 8: 28 + 4 = 32
Step 9: 32 + 4 = 36
Step 10: 36 + 4 = 40
Step 11: 40 + 4 = 44
Step 12: 44 + 4 = 48
Step 13: 48 + 4 = 52
Step 14: 52 + 4 = 56
Step 15: 56 + 4 = 60
Step 16: 60 + 4 = 64
Step 17: 64 + 4 = 68
Step 18: 68 + 4 = 72
Step 19: 72 + 4 = 76
Step 20: 76 + 4 = 80
Step 21: 80 + 4 = 84
Step 22: 84 + 4 = 88
Step 23: 88 + 4 = 92
Step 24: 92 + 4 = 96
Step 25: 96 + 4 = 100
Step 26: 100 + 4 = 104
Step 27: 104 + 4 = 108
Step 28: 108 + 4 = 112
Step 29: 112 + 4 = 116
Step 30: 116 + 4 = 120
Step 31: 120 + 4 = 124
Step 32: 124 + 4 = 128
Step 33: 128 + 4 = 132
Step 34: 132 + 4 = 136
Step 35: 136 + 4 = 140
Step 36: 140 + 4 = 144
Step 37: 144 + 4 = 148
Step 38: 148 + 4 = 152
Step 39: 152 + 4 = 156
Step 40: 156 + 4 = 160
Step 41: 160 + 4 = 164
Step 42: 164 + 4 = 168
Step 43: 168 + 4 = 172
Step 44: 172 + 4 = 176
Step 45: 176 + 4 = 180
Step 46: 180 + 4 = 184
Step 47: 184 + 4 = 188
Step 48: 188 + 4 = 192
Step 49: 192 + 4 = 196
Step 50: 196 + 4 = 200
Step 51: 200 + 4 = 204
Step 52: 204 + 4 = 208
Step 53: 208 + 4 = 212
Step 54: 212 + 4 = 216
Step 55: 216 + 4 = 220
Step 56: 220 + 4 = 224
Step 57: 224 + 4 = 228
Step 58: 228 + 4 = 232
Step 59: 232 + 4 = 236
Step 60: 236 + 4 = 240
Step 61: 240 + 4 = 244
Step 62: 244 + 4 = 248
Step 63: 248 + 4 = 252
Step 64: 252 + 4 = 256
Step 65: 256 + 4 = 260
Step 66: 260 + 4 = 264
Step 67: 264 + 4 = 268
Step 68: 268 + 4 = 272
Step 69: 272 + 4 = 276
Step 70: 276 + 4 = 280
Step 71: 280 + 4 = 284
Step 72: 284 + 4 = 288
Step 73: 288 + 4 = 292
Step 74: 292 + 4 = 296
Step 75: 296 + 4 = 300
Step 76: 300 + 4 = 304
Step 77: 304 + 4 = 308
Step 78: 308 + 4 = 312
Step 79: 312 + 4 = 316
Step 80: 316 + 4 = 320
Step 81: 320 + 4 = 324
Step 82: 324 + 4 = 328
Step 83: 328 + 4 = 332
Step 84: 332 + 4 = 336
Step 85: 336 + 4 = 340
Step 86: 340 + 4 = 344
Step 87: 344 + 4 = 348
Step 88: 348 + 4 = 352
Step 89: 352 + 4 = 356
Step 90: 356 + 4 = 360
Step 91: 360 + 4 = 364
Step 92: 364 + 4 = 368
Step 93: 368 + 4 = 372
Step 94: 372 + 4 = 376
Step 95: 376 + 4 = 380
Step 96: 380 + 4 = 384
Step 97: 384 + 4 = 388
Step 98: 388 + 4 = 392
Step 99: 392 + 4 = 396
Step 100: 396 + 4 = 400
Step 101: 400 + 4 = 404
Step 102: 404 + 4 = 408
Step 103: 408 + 4 = 412
Step 104: 412 + 4 = 416
Step 105: 416 + 4 = 420
Step 106: 420 + 4 = 424
Step 107: 424 + 4 = 428
Step 108: 428 + 4 = 432
Step 109: 432 + 4 = 436
Step 110: 436 + 4 = 440
Step 111: 440 + 4 = 444
Step 112: 444 + 4 = 448
Step 113: 448 + 4 = 452
Step 114: 452 + 4 = 456
Step 115: 456 + 4 = 460
Step 116: 460 + 4 = 464
Step 117: 464 + 4 = 468
Step 118: 468 + 4 = 472
Step 119: 472 + 4 = 476
Step 120: 476 + 4 = 480
Step 121: 480 + 4 = 484
Step 122: 484 + 4 = 488
Step 123: 488 + 4 = 492
Step 124: 492 + 4 = 496
Step 125: 496 + 4 = 500
Step 126: 500 + 4 = 504
Step 127: 504 + 4 = 508
Step 128: 508 + 4 = 512
Step 129: 512 + 4 = 516
Step 130: 516 + 4 = 520
Step 131: 520 + 4 = 524
Step 132: 524 + 4 = 528
Step 133: 528 + 4 = 532
Step 134: 532 + 4 = 536
Step 135: 536 + 4 = 540
Step 136: 540 + 4 = 544
Step 137: 544 + 4 = 548
Step 138: 548 + 4 = 552
Step 139: 552 + 4 = 556
Step 140: 556 + 4 = 560
Step 141: 560 + 4 = 564
Step 142: 564 + 4 = 568
Step 143: 568 + 4 = 572
Step 144: 572 + 4 = 576
Step 145: 576 + 4 = 580
Step 146: 580 + 4 = 584
Step 147: 584 + 4 = 588
Step 148: 588 + 4 = 592
Step 149: 592 + 4 = 596
Step 150: 596 + 4 = 600
Step 151: 600 + 4 = 604
Step 152: 604 + 4 = 608
Step 153: 608 + 4 = 612
Step 154: 612 + 4 = 616
Step 155: 616 + 4 = 620
Step 156: 620 + 4 = 624
Step 157: 624 + 4 = 628
Step 158: 628 + 4 = 632
Step 159: 632 + 4 = 636
Step 160: 636 + 4 = 640
Step 161: 640 + 4 = 644
Step 162: 644 + 4 = 648
Step 163: 648 + 4 = 652
Step 164: 652 + 4 = 656
Step 165: 656 + 4 = 660
Step 166: 660 + 4 = 664
Step 167: 664 + 4 = 668
Step 168: 668 + 4 = 672
Step 169: 672 + 4 = 676
Step 170: 676 + 4 = 680
Step 171: 680 + 4 = 684
Step 172: 684 + 4 = 688
Step 173: 688 + 4 = 692
Step 174: 692 + 4 = 696
Step 175: 696 + 4 = 700
Step 176: 700 + 4 = 704
Step 177: 704 + 4 = 708
Step 178: 708 + 4 = 712
Step 179: 712 + 4 = 716
Step 180: 716 + 4 = 720
Step 181: 720 + 4 = 724
Step 182: 724 + 4 = 728
Step 183: 728 + 4 = 732
Step 184: 732 + 4 = 736
Step 185: 736 + 4 = 740
Step 186: 740 + 4 = 744
Step 187: 744 + 4 = 748
Step 188: 748 + 4 = 752
Step 189: 752 + 4 = 756
Step 190: 756 + 4 = 760
Step 191: 760 + 4 = 764
Step 192: 764 + 4 = 768
Step 193: 768 + 4 = 772
Step 194: 772 + 4 = 776
Step 195: 776 + 4 = 780
Step 196: 780 + 4 = 784
Step 197: 784 + 4 = 788
Step 198: 788 + 4 = 792
Step 199: 792 + 4 = 796
Step 200: 796 + 4 = 800
Step 201: 800 + 4 = 804
Step 202: 804 + 4 = 808
Step 203: 808 + 4 = 812
Step 204: 812 + 4 = 816
Step 205: 816 + 4 = 820
Step 206: 820 + 4 = 824
Step 207: 824 + 4 = 828
Step 208: 828 + 4 = 832
Step 209: 832 + 4 = 836
Step 210: 836 + 4 = 840
Step 211: 840 + 4 = 844
Step 212: 844 + 4 = 848
Step 213: 848 + 4 = 852
Step 214: 852 + 4 = 856
Step 215: 856 + 4 = 860
Step 216: 860 + 4 = 864
Step 217: 864 + 4 = 868
Step 218: 868 + 4 = 872
Step 219: 872 + 4 = 876
Step 220: 876 + 4 = 880
Step 221: 880 + 4 = 884
Step 222: 884 + 4 = 888
Step 223: 888 + 4 = 892
Step 224: 892 + 4 = 896
Step 225: 896 + 4 = 900
Step 226: 900 + 4 = 904
Step 227: 904 + 4 = 908
Step 228: 908 + 4 = 912
Step 229: 912 + 4 = 916
Step 230: 916 + 4 = 920
Step 231: 920 + 4 = 924
Step 232: 924 + 4 = 928
Step 233: 928 + 4 = 932
Step 234: 932 + 4 = 936
Step 235: 936 + 4 = 940
Step 236: 940 + 4 = 944
Step 237: 944 + 4 = 948
Step 238: 948 + 4 = 952
Step 239: 952 + 4 = 956
Step 240: 956 + 4 = 960
Step 241: 960 + 4 = 964
Step 242: 964 + 4 = 968
Step 243: 968 + 4 = 972
Step 244: 972 + 4 = 976
Step 245: 976 + 4 = 980
Step 246: 980 + 4 = 984
Step 247: 984 + 4 = 988
Step 248: 988 + 4 = 992
Step 249: 992 + 4 = 996
Step 250: 996 + 4 = 1000
Step 251: 1000 + 4 = 1004
Step 252: 1004 + 4 = 1008
Step 253: 1008 + 4 = 1012
Step 254: 1012 + 4 = 1016
Step 255: 1016 + 4 = 1020
Step 256: 1020 + 4 = 1024
Step 257: 1024 + 4 = 1028
Step 258: 1028 + 4 = 1032
Step 259: 1032 + 4 = 1036
Step 260: 1036 + 4 = 1040
Step 261: 1040 + 4 = 1044
Step 262: 1044 + 4 = 1048
Step 263: 1048 + 4 = 1052
Step 264: 1052 + 4 = 1056
Step 265: 1056 + 4 = 1060
Step 266: 1060 + 4 = 1064
Step 267: 1064 + 4 = 1068
Step 268: 1068 + 4 = 1072
Step 269: 1072 + 4 = 1076
Step 270: 1076 + 4 = 1080
Step 271: 1080 + 4 = 1084
Step 272: 1084 + 4 = 1088
Step 273: 1088 + 4 = 1092
Step 274: 1092 + 4 = 1096
Step 275: 1096 + 4 = 1100
Step 276: 1100 + 4 = 1104
Step 277: 1104 + 4 = 1108
Step 278: 1108 + 4 = 1112
Step 279: 1112 + 4 = 1116
Step 280: 1116 + 4 = 1120
Step 281: 1120 + 4 = 1124
Step 282: 1124 + 4 = 1128
Step 283: 1128 + 4 = 1132
Step 284: 1132 + 4 = 1136
Step 285: 1136 + 4 = 1140
Step 286: 1140 + 4 = 1144
Step 287: 1144 + 4 = 1148
Step 288: 1148 + 4 = 1152
Step 289: 1152 + 4 = 1156
Step 290: 1156 + 4 = 1160
Step 291: 1160 + 4 = 1164
Step 292: 1164 + 4 = 1168
Step 293: 1168 + 4 = 1172
Step 294: 1172 + 4 = 1176
Step 295: 1176 + 4 = 1180
Step 296: 1180 + 4 = 1184
Step 297: 1184 + 4 = 1188
Step 298: 1188 + 4 = 1192
Step 299: 1192 + 4 = 1196
Step 300: 1196 + 4 = 1200
Step 301: 1200 + 4 = 1204
Step 302: 1204 + 4 = 1208
Step 303: 1208 + 4 = 1212
Step 304: 1212 + 4 = 1216
Step 305: 1216 + 4 = 1220
Step 306: 1220 + 4 = 1224
Step 307: 1224 + 4 = 1228
Step 308: 1228 + 4 = 1232
Step 309: 1232 + 4 = 1236
Step 310: 1236 + 4 = 1240
Step 311: 1240 + 4 = 1244
Step 312: 1244 + 4 = 1248
Step 313: 1248 + 4 = 1252
Step 314: 1252 + 4 = 1256
Step 315: 1256 + 4 = 1260
Step 316: 1260 + 4 = 1264
Step 317: 1264 + 4 = 1268
Step 318: 1268 + 4 = 1272
Step 319: 1272 + 4 = 1276
Step 320: 1276 + 4 = 1280
Step 321: 1280 + 4 = 1284
Step 322: 1284 + 4 = 1288
Step 323: 1288 + 4 = 1292
Step 324: 1292 + 4 = 1296
Step 325: 1296 + 4 = 1300
Step 326: 1300 + 4 = 1304
Step 327: 1304 + 4 = 1308
Step 328: 1308 + 4 = 1312
Step 329: 1312 + 4 = 1316
Step 330: 1316 + 4 = 1320
Step 331: 1320 + 4 = 1324
Step 332: 1324 + 4 = 1328
Step 333: 1328 + 4 = 1332
Step 334: 1332 + 4 = 1336
Step 335: 1336 + 4 = 1340
Step 336: 1340 + 4 = 1344
Step 337: 1344 + 4 = 1348
Step 338: 1348 + 4 = 1352
Step 339: 1352 + 4 = 1356
Step 340: 1356 + 4 = 1360
Step 341: 1360 + 4 = 1364
Step 342: 1364 + 4 = 1368
Step 343: 1368 + 4 = 1372
Step 344: 1372 + 4 = 1376
Step 345: 1376 + 4 = 1380
Step 346: 1380 + 4 = 1384
Step 347: 1384 + 4 = 1388
Step 348: 1388 + 4 = 1392
Step 349: 1392 + 4 = 1396
Step 350: 1396 + 4 = 1400
Step 351: 1400 + 4 = 1404
Step 352: 1404 + 4 = 1408
Step 353: 1408 + 4 = 1412
Step 354: 1412 + 4 = 1416
Step 355: 1416 + 4 = 1420
Step 356: 1420 + 4 = 1424
Step 357: 1424 + 4 = 1428
Step 358: 1428 + 4 = 1432
Step 359: 1432 + 4 = 1436
Step 360: 1436 + 4 = 1440
Step 361: 1440 + 4 = 1444
Step 362: 1444 + 4 = 1448
Step 363: 1448 + 4 = 1452
Step 364: 1452 + 4 = 1456
Step 365: 1456 + 4 = 1460
Step 366: 1460 + 4 = 1464
Step 367: 1464 + 4 = 1468
Step 368: 1468 + 4 = 1472
Step 369: 1472 + 4 = 1476
Step 370: 1476 + 4 = 1480
Step 371: 1480 + 4 = 1484
Step 372: 1484 + 4 = 1488
Step 373: 1488 + 4 = 1492
Step 374: 1492 + 4 = 1496
Step 375: 1496 + 4 = 1500
Step 376: 1500 + 4 = 1504
Step 377: 1504 + 4 = 1508
Step 378: 1508 + 4 = 1512
Step 379: 1512 + 4 = 1516
Step 380: 1516 + 4 = 1520
Step 381: 1520 + 4 = 1524
Step 382: 1524 + 4 = 1528
Step 383: 1528 + 4 = 1532
Step 384: 1532 + 4 = 1536
Step 385: 1536 + 4 = 1540
Step 386: 1540 + 4 = 1544
Step 387: 1544 + 4 = 1548
Step 388: 1548 + 4 = 1552
Step 389: 1552 + 4 = 1556
Step 390: 1556 + 4 = 1560
Step 391: 1560 + 4 = 1564
Step 392: 1564 + 4 = 1568
Step 393: 1568 + 4 = 1572
Step 394: 1572 + 4 = 1576
Step 395: 1576 + 4 = 1580
Step 396: 1580 + 4 = 1584
Step 397: 1584 + 4 = 1588
Step 398: 1588 + 4 = 1592
Step 399: 1592 + 4 = 1596
Step 400: 1596 + 4 = 1600
Step 401: 1600 + 4 = 1604
Step 402: 1604 + 4 = 1608
Step 403: 1608 + 4 = 1612
Step 404: 1612 + 4 = 1616
Step 405: 1616 + 4 = 1620
Step 406: 1620 + 4 = 1624
Step 407: 1624 + 4 = 1628
Step 408: 1628 + 4 = 1632
Step 409: 1632 + 4 = 1636
Step 410: 1636 + 4 = 1640
Step 411: 1640 + 4 = 1644
Step 412: 1644 + 4 = 1648
Step 413: 1648 + 4 = 1652
Step 414: 1652 + 4 = 1656
Step 415: 1656 + 4 = 1660
Step 416: 1660 + 4 = 1664
Step 417: 1664 + 4 = 1668
Step 418: 1668 + 4 = 1672
Step 419: 1672 + 4 = 1676
Step 420: 1676 + 4 = 1680
Step 421: 1680 + 4 = 1684
Step 422: 1684 + 4 = 1688
Step 423: 1688 + 4 = 1692
Step 424: 1692 + 4 = 1696
Step 425: 1696 + 4 = 1700
Step 426: 1700 + 4 = 1704

So, 4*426 = 1704